A Ku-Band Hairpin Filter Based on LTCC Technology

Li, Yinqiao; Hằng, Lê Thị Thu; Chen, Jiechen; Yuan-chun, Fei

doi:10.1109/cjmw.2008.4772473

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…II) the commonly used topology is a hairpin filter. The results of this work are like [6], [7] and [9] but with a lower IL and a harmonic suppression. [8] uses splitring resonators in combination with a lowpass to realize a bandpass characteristic.…”

Section: Discussionmentioning

confidence: 70%

Design and comparison of various coupled line Tx-filters for a Ku-band block upconverter

Maaßen

Rautschke

Boeck

2016

2016 German Microwave Conference (GeMiC)

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In this contribution common coupled line filter topologies are developed for their application as Tx-filter in a Ku-band block upconverter (BUC) from 13.75 -14.5 GHz. Tough requirements of Rx-, LO-and second harmonic suppression were achieved by a detailed analysis of the metallic losses as well as equalizing even-and odd-mode velocities of the coupled line section. Four different filters were designed on an alumina substrate resulting in high measured performance values and small size compared to other work. By using a hairpin topology a designed filter achieves a low insertion loss (IL) less than 1.5 dB, a return loss (RL) of better than 20 dB, for a 3 dB fractional bandwidth (FBW) of 14.7 % while maintaining a second harmonic suppression of more than 20 dB.

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Section: Discussionmentioning

confidence: 70%

Design and comparison of various coupled line Tx-filters for a Ku-band block upconverter

Maaßen

Rautschke

Boeck

2016

2016 German Microwave Conference (GeMiC)

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“…Consider the microstrip hairpin filter shown in Figure . The

L_{0}

and

W_{0}

are the length and width of the tapped line.…”

Section: Simulation Examplesmentioning

confidence: 99%

“…Consider the microstrip hairpin filter 18,19 shown in Figure 8. The coarse model, shown in Figure 9, is the equivalent circuit implemented in ADS.…”

Section: Design Of Microstrip Hairpin Filtermentioning

confidence: 99%

Modeling and optimization of microwave filter by ADS-based KBNN

Chen

Tian

2016

Int. J. RF Microw. Comput. Aided Eng.

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When microwave devices are designed by knowledge‐based neural network (KBNN), the empirical formula is always used as priori knowledge. However, it is difficult to derive the corresponding formulas for the most electromagnetic problems, especially for complex electromagnetic problems, the formula derivation is almost impossible. In this article, they combine neural network with simulation software and use results of Agilent ADS as priori knowledge and HFSS as teaching signal to train the neural network by particle swarm optimization (PSO), which solves the difficulty in obtaining priori knowledge and effectively reduces the complexity of the neural network structure. Based on the KBNN, the microwave filters are designed. The results of optimization satisfy the required specifications which show the effectiveness and superiority of the method.

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“…What's more, the character of high Q factor, high stability, high integration and low insertion loss makes LTCC technology the most outstanding substrate material. Thus, it is possible to realize very integrated millimeter wave filters that presents good performance [2,3].…”

Section: Introductionmentioning

confidence: 99%

A 35 GHz reduced-size bandpass filter based on SIW in LTCC technology

Liu

Zhou

Liu

et al. 2013

2013 IEEE INTERNATIONAL CONFERENCE ON MICROWAVE TECHNOLOGY &Amp; COMPUTATIONAL ELECTROMAGNETICS

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This paper presents a bandpass filter composed of cavities delimited in a Low Temperature Co-fired Ceramic (LTCC) substrate by a periodic lattice of metallic via-holes. Compared with the conventional two dimensional PCB, LTCC technology achieves higher Q factor, higher density, smaller size, and lower cost[1]. I/O coplanar waveguide (CPW) feeds are printed on the top face of the substrate and are suitable for planar circuit integration. EM simulator HFSS is employed in determining and optimizing the physical dimension of the filter. In this paper, a planar four-pole linear phase filter centered at 35 GHz based on substrate integrated waveguide (SIW) is proposed. The filter's fractional bandwidth (FBW) is 10% with insertion loss of -0.65 dB and return loss of -20 dB.

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A Ku-Band Hairpin Filter Based on LTCC Technology

Cited by 4 publications

References 3 publications

Design and comparison of various coupled line Tx-filters for a Ku-band block upconverter

Design and comparison of various coupled line Tx-filters for a Ku-band block upconverter

Modeling and optimization of microwave filter by ADS-based KBNN

A 35 GHz reduced-size bandpass filter based on SIW in LTCC technology

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